AJ

A game collection by AJ Almachar

RETROMIND ARCADE

Classic fun. New challenges.

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What is RetroMind Arcade?

Fifty games. One app. No connection required.

A collection of fast, replayable arcade, puzzle, math, memory, reaction and word games, built so that opening the app and playing something takes two taps — or one, if you use the I’m Bored button.

Every game keeps its own high score per difficulty, and the app tracks a level, a daily streak and 37 achievements across everything you play. A daily challenge picks one game and one goal, and changes at midnight.

It was built to be opened for ninety seconds in a queue as easily as for half an hour on a sofa. Nothing is gated behind a purchase, because there are no purchases.

These are games for entertainment and practice. They make no medical or cognitive claims.

  • 50

    games

  • 7

    categories

  • 4

    difficulty tiers

  • 0

    adverts

  • Current releasev1.0.0

Seven shelves

Something for whatever kind of bored you are

All 50 games are grouped into seven categories, so the app has something for a thirty-second gap and something for a long wait.

  • 10 GAMES

    Retro Arcade

    Reflex-driven action with an 80s cabinet feel.

  • 7 GAMES

    Puzzle

    Take your time. Find the move that works.

  • 9 GAMES

    Math

    Arithmetic under a clock.

  • 6 GAMES

    Memory

    Hold it in your head, then prove it.

  • 7 GAMES

    Reaction

    Speed and focus, measured in milliseconds.

  • 7 GAMES

    Word Games

    Letters, anagrams and vocabulary.

  • 4 GAMES

    Logic

    Deduction, patterns and board tactics.

From the library

A few of the fifty

Every game listed here ships in the app. There are 50 in total — these are a cross-section.

  • RETRO ARCADE~3 min

    Star Lancer

    Hold the line.

    Descending formations sweep the sky while individual raiders peel off and dive at you. Your cannon fires automatically - your job is positioning. Clear…

    EasyNormalHardExpert
  • RETRO ARCADE~4 min

    Circuit Chase

    Clear the board. Mind the hunters.

    Sweep every data node off a circuit board while trace hunters patrol it. Grabbing a surge node makes the hunters flee for a few seconds - the only windo…

    EasyNormalHardExpert
  • PUZZLE~2 min

    Gem Cascade

    Set up the chain.

    Swap two neighbouring gems to line up three or more. When they clear, everything above falls - and may line up again. Each step of a chain is worth more…

    EasyNormalHardExpert
  • WORD GAMES~4 min

    Letter Lock

    Six tries. Deduce the word.

    Guess the hidden word. Each guess is marked letter by letter: a tick for the right letter in the right place, arrows for a letter that is in the word bu…

    EasyNormalHardExpert
  • PUZZLE~5 min

    Mini Sudoku

    One solution, guaranteed.

    A 4x4 or 6x6 number grid where each row, column and box holds every digit exactly once. Every puzzle is checked to have exactly one solution, so any gri…

    EasyNormalHardExpert
  • REACTION~45s

    Reflex Meter

    Measured in milliseconds.

    Five trials. Wait for the panel to turn green, then tap as fast as you can. Your score is the average reaction time across all five, so lower is better.…

    EasyNormalHardExpert
  • LOGIC~4 min

    Code Break

    Deduce the hidden sequence.

    Guess a sequence of symbols. After each guess you are told how many are exactly right and how many are the right symbol in the wrong place - never which…

    EasyNormalHardExpert
  • RETRO ARCADE~2 min

    Neon Serpent

    Grow the line. Do not cross it.

    Steer a glowing serpent around a closed arena, collecting energy nodes. Every node makes you longer and a little faster. The walls and your own tail are…

    EasyNormalHardExpert
  • PUZZLE~5 min

    Fusion Grid

    Slide, merge, repeat.

    Swipe to slide every tile at once. Two equal tiles fuse into their double. A tile created by a merge cannot merge again on the same move, so planning th…

    EasyNormalHardExpert
  • MEMORY~3 min

    Pair Hunt

    Turn two. Remember the rest.

    Flip cards two at a time and clear the board by matching pairs. Every face is a different shape as well as a different colour. Finding pairs in fewer mo…

    EasyNormalHardExpert
  • MATH~1 min

    Add Sprint

    Addition against the clock.

    Straight addition, sized to the difficulty you pick. Easy stays inside two digits; Expert runs well past three. Sixty seconds, three lives, and a combo…

    EasyNormalHardExpert
  • PUZZLE~3 min

    Maze Escape

    Find the exit, then a bigger maze.

    Navigate to the marked exit. Every maze is generated as a perfect maze - exactly one path between any two points - so there is always a route and never…

    EasyNormalHardExpert

The full list

Every one of the 50

Nothing here is coming soon or planned. This is the shipped library, generated from the app's own catalog.

Showing 50 games

  • Neon Serpent

    ~2 min

    Grow the line. Do not cross it.

  • Brick Cascade

    ~3 min

    Angle every bounce.

  • Pulse Paddles

    ~3 min

    First to seven.

  • Star Lancer

    ~3 min

    Hold the line.

  • Void Drift

    ~4 min

    Momentum is the enemy.

  • Star Catcher

    ~2 min

    Catch the stars, dodge the shards.

  • Sky Hopper

    ~2 min

    One tap. Then one more.

  • Gridlock Dash

    ~3 min

    Time every step.

  • Lunar Touchdown

    ~3 min

    Slow, straight and on the pad.

  • Circuit Chase

    ~4 min

    Clear the board. Mind the hunters.

  • Fusion Grid

    ~5 min

    Slide, merge, repeat.

  • Mini Sudoku

    ~5 min

    One solution, guaranteed.

  • Slide Grid

    ~4 min

    Put the numbers back in order.

  • Maze Escape

    ~3 min

    Find the exit, then a bigger maze.

  • Gem Cascade

    ~2 min

    Set up the chain.

  • Pixel Logic

    ~5 min

    The numbers describe the picture.

  • Block Fit

    ~5 min

    No timer. Just room.

  • Add Sprint

    ~1 min

    Addition against the clock.

  • Subtract Sprint

    ~1 min

    Take it away, quickly.

  • Times Blitz

    ~1 min

    Multiplication drill.

  • Divide Drill

    ~1 min

    Every answer is whole.

  • Mixed Ops

    ~1 min

    All four, no warning.

  • Missing Number

    ~1 min

    Fill the gap.

  • Sequence Solver

    ~1 min

    What comes next?

  • Percent Punch

    ~1 min

    Percentages in your head.

  • Two-Step Ops

    ~1 min

    Multiply first. Then add.

  • Pair Hunt

    ~3 min

    Turn two. Remember the rest.

  • Pattern Recall

    ~2 min

    Where were they?

  • Grid Recall

    ~2 min

    Same cells. Same order.

  • Colour Chain

    ~2 min

    One longer every round.

  • Digit Span

    ~2 min

    How many can you hold?

  • Reverse Span

    ~2 min

    Now backwards.

  • Reflex Meter

    ~45s

    Measured in milliseconds.

  • Target Rush

    ~45s

    Hit them before they fade.

  • Hold Fire

    ~50s

    Knowing when not to tap.

  • Precision Ring

    ~2 min

    The margin keeps shrinking.

  • Colour Clash

    ~1 min

    Read the ink, not the word.

  • Word Focus

    ~1 min

    Now read the word instead.

  • Quick Count

    ~1 min

    Count them before the clock does.

  • Unscramble

    ~1 min

    The letters are all there.

  • Missing Letter

    ~1 min

    One gap, one answer.

  • Word Match

    ~1 min

    Which word means this?

  • Define It

    ~2 min

    Now the other way round.

  • Anagram Spot

    ~2 min

    Same letters, exactly.

  • Word Hunt

    ~4 min

    Find them all.

  • Letter Lock

    ~4 min

    Six tries. Deduce the word.

  • Code Break

    ~4 min

    Deduce the hidden sequence.

  • Piece Patrol

    ~2 min

    Which square is out of reach?

  • Knight Path

    ~2 min

    Fewest hops from here to there.

  • Piece Mobility

    ~2 min

    Count the squares it covers.

Inside the app

What it actually looks like

Real screens from the released build, not mockups.

The RetroMind Arcade home dashboard showing the player level, the I’m Bored button and the daily challenge

Pick a screen

The RetroMind Arcade home dashboard showing the player level, the I’m Bored button and the daily challenge

50
games
7
categories
0
adverts

Why this one

Built for the gap between things

Short sessions, no friction, and nothing asking you for money or an email address.

  • 01

    Two taps to playing

    The dashboard launches any game in two taps. The I’m Bored button picks one and starts it in one.

  • 02

    Works with no connection

    Every game, score and achievement works offline. The app requests no permissions and has no network access at all.

  • 03

    50 games, seven kinds

    Arcade, puzzle, math, memory, reaction, word and logic — so a session can be reflexes or deduction, whichever you are in the mood for.

  • 04

    Four difficulties everywhere

    Easy through Expert on every game, with scores weighted so a hard run outranks an easy one on the same board.

  • 05

    Scores that stay yours

    High scores, statistics, levels and streaks are saved on your device. No account, and nothing uploaded anywhere.

  • 06

    A reason to come back

    A daily challenge that rolls over at midnight, 37 achievements with real progress, and a streak that rewards short, regular sessions.

Get it

Download for Android

RetroMind Arcade is free. The download is a standard Android APK, installed directly rather than through the Play Store.

Free download

RetroMind Arcade

50 games in one app. Plays offline, with no account, no adverts and no tracking.

GET ON IOS— coming soon
Version
1.0.0
Format
Android APK · arm64-v8a
Size
22 MB
Requires
Android 7.0 and newer
Updated
21 September 2026
Price
Free · no ads, no purchases

RetroMind Arcade · v1.0.0

Before you install

This APK installs directly, outside the Google Play Store. That is normal for a direct download, but Android will warn you about it. Here is what to expect.

  1. Download the APK

    Your browser may ask you to confirm the download. The file is about 22 MB.

  2. Open the downloaded file

    Tap it in your browser’s downloads, or find it in your Files app under Downloads.

  3. Allow installation if Android asks

    Because this app does not come from Google Play, Android will ask whether to allow installs from your browser. Grant it only if you trust this source, and turn it off again afterwards if you prefer.

  4. Complete the installation

    Tap Install and wait for it to finish.

  5. Open RetroMind Arcade

    That’s it — no account, no setup, no connection needed.

Stay careful. Only install APK files from sources you trust, and keep your device’s security protections turned on.

Installing

How to install the APK

The same steps shown before the download, kept here so you can find them again afterwards.

  1. 1

    Download the APK

    Your browser may ask you to confirm the download. The file is about 22 MB.

  2. 2

    Open the downloaded file

    Tap it in your browser’s downloads, or find it in your Files app under Downloads.

  3. 3

    Allow installation if Android asks

    Because this app does not come from Google Play, Android will ask whether to allow installs from your browser. Grant it only if you trust this source, and turn it off again afterwards if you prefer.

  4. 4

    Complete the installation

    Tap Install and wait for it to finish.

  5. 5

    Open RetroMind Arcade

    That’s it — no account, no setup, no connection needed.

Why Android warns you

Android shows a warning for any app installed outside the Play Store, regardless of what the app does. It is telling you that it has not vetted the file — not that this file is unsafe. Only install APKs from sources you trust, and leave your device’s security protections switched on.

Questions

Before you download

The things worth knowing about installing an app this way.

Is this safe to install?

RetroMind Arcade requests no permissions at all and has no network access — it does not hold Android's INTERNET permission, so it cannot send anything anywhere even if it wanted to. That said, you should apply the same caution to any APK: only install files from a source you trust, and keep your device's security protections switched on. If you would rather wait for a Play Store listing, that is a perfectly reasonable choice.

Why is it not on the Google Play Store?

It is an independent release and has not been submitted to Play. A direct APK means it can be shared immediately, without a review queue or a developer account. A Play listing may follow.

Android says the file may be harmful. Should I worry?

Android shows that warning for every app installed outside the Play Store, whatever the app does. It means Android has not vetted the file — not that the file is known to be dangerous. You can allow the install for your browser, then turn that permission off again afterwards.

Will it work on my phone?

It needs Android 7.0 and newer. The download is built for 64-bit ARM devices, which covers effectively every Android phone sold in the last several years. It is about 22 MB installed.

Does it need an internet connection?

No. All 50 games, every score, the daily challenge and all achievements work with no connection. The app has no online features at all.

Are there adverts or in-app purchases?

Neither. There is no advertising SDK, no purchase flow, no subscription and no "premium" tier. Every game is available from the moment you install it.

What happens to my scores and data?

Everything stays on your device — there is no account and nothing is uploaded. That also means progress is not backed up: uninstalling the app, clearing its data, or using the reset option in Settings will remove it permanently.

Is there an iPhone version?

The app is built with a cross-platform framework and the iOS project is configured, but it has not been submitted to the App Store yet. The iOS button above will become a working link when it is.

About

Who made this

Created by

AJ Almachar

Built with

Claude Code

RetroMind Arcade is an independent project. Every game, sound effect, music track and piece of artwork in it was made for the app — nothing is licensed from or copied out of another game.

Support

Found a bug, or something not working on your device? Get in touch.

GitHub Issues
App version
1.0.0
Platform
Android · iOS in progress
Price
Free